/*
 
(c) 2008 by Sławek Kruczek
slav.mir@gmail.com
 

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/


package analytics.util;

public class RPNConstant implements RPNElement {
    
    private double value;
    
    
    public static RPNConstant parseConstant(String name) {
        try {
            return new RPNConstant(Double.parseDouble(name));
        } catch (NumberFormatException e) {
            return null;
        }
    }
    
    public RPNConstant(double value) {
        this.value = value;
    }
    
    public void exec(RPNExecutionEnvironment env) {
        env.push(value);
    }

}
